go: standardise output dirs for reporting material

.gitignore

@@ -4,6 +4,8 @@
 result
 result-*
 math-optim
+# output dir for generated plot pics/tex files
+out
 
 .vimrc
 

algo/algo.go

@@ -14,8 +14,6 @@
 // methods over it.
 type Values []float64
 
-var picPath = "res/"
-
 var plotWg sync.WaitGroup
 
 // DoRandomSearch executes a search using the 'Random search' method.

algo/algo_test.go

@@ -7,6 +7,8 @@
 	"os"
 	"sync"
 	"testing"
+
+	"git.dotya.ml/wanderer/math-optim/report"
 )
 
 var wg sync.WaitGroup
@@ -18,7 +20,9 @@ func TestDoRandomSearchExec(t *testing.T) {
 
 	wg.Wait()
 
-	if err := os.RemoveAll(picPath); err != nil {
+	picsDir := report.GetPicsDir()
+
+	if err := os.RemoveAll(picsDir); err != nil {
 		t.Error(err)
 	}
 }
@@ -30,7 +34,9 @@ func TestDoSHCExec(t *testing.T) {
 
 	wg.Wait()
 
-	if err := os.RemoveAll(picPath); err != nil {
+	picsDir := report.GetPicsDir()
+
+	if err := os.RemoveAll(picsDir); err != nil {
 		t.Error(err)
 	}
 }

algo/plot.go

@@ -9,6 +9,7 @@
 	"sync"
 	"time"
 
+	"git.dotya.ml/wanderer/math-optim/report"
 	"git.dotya.ml/wanderer/math-optim/stats"
 	"git.dotya.ml/wanderer/math-optim/util"
 	"gonum.org/v1/gonum/floats"
@@ -26,6 +27,13 @@ func plotAllDims(algoStats []stats.Stats, fPrefix, fExt string, wg *sync.WaitGro
 	defer wg.Done() // does this work with panic in the mix? TODO(me): find out.
 
 	start := time.Now()
+
+	picsDir := report.GetPicsDir()
+
+	if err := util.CreatePath(picsDir); err != nil {
+		log.Println(err)
+	}
+
 	pWidth := 13 * vg.Centimeter
 	pHeight := 13 * vg.Centimeter
 
@@ -89,11 +97,7 @@ func plotAllDims(algoStats []stats.Stats, fPrefix, fExt string, wg *sync.WaitGro
 				log.Panic(err)
 			}
 
-			if err := util.CreatePath(picPath); err != nil {
-				log.Println(err)
-			}
-
-			filename := picPath +
+			filename := picsDir +
 				fPrefix + "-" +
 				util.SanitiseFName(s.Algo) + "-" +
 				util.SanitiseFName(dim.BenchName) + "-" +

report/report.go

@@ -12,6 +12,16 @@
 	"os"
 )
 
+const (
+	outPrefix = "out/"
+	picsDir   = "pics/"
+)
+
+// GetPicsDirPrefix returns the path to the folder meant for plot pics.
+func GetPicsDir() string {
+	return outPrefix + picsDir
+}
+
 // Print prints stats in a report format.
 func Print() {
 	fmt.Fprint(os.Stderr, "\n* printing the report...\n\n")